Critical severity · published Apr 4, 2023
CVE-2020-21487
Cross Site Scripting vulnerability found in Netgate pfSense 2.4.4 and ACME package v.0.6.3 allows attackers to execute arbitrary code via the RootFolder field of…
9.6
CVSS
0.7%
EPSS
No
On KEV
Description
Cross Site Scripting vulnerability found in Netgate pfSense 2.4.4 and ACME package v.0.6.3 allows attackers to execute arbitrary code via the RootFolder field of acme_certificates.php.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PF
Pfsense · Netgate
2.4.4 · source: NVD
PA
Pfsense Acme Package · Netgate
0.6.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-21487
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-21487
Patch
https://github.com/pfsense/FreeBSD-ports/commit/a6f443cde51e7fcf17e51f16014d3589253284d8
Issue Tracking
https://redmine.pfsense.org/issues/9888
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